A clear liquid diet is typically ordered post-surgery and often supplemented with an IV for additional fluids. Persistent encouragement increases the speed at which the patient is able to progress to a full liquid diet or even straight to a general or low-residue diet, based on tolerance. Improved surgical recovery and reduced length of stay can lead to greater patient satisfaction with the health care received.
Characteristics of a Clear Liquid Diet
• Short-term
• Highly restrictive
• Composed of clear liquids or foods that become liquid at body temperature
• Requires minimal digestion and leaves little residue in the GI tract
• Inadequate in all nutrients
Characteristics of a Full Liquid Diet
• Short-term
• Highly restrictive
• Composed of foods that are liquid or become liquid at body temperature
• Used as a transition between a clear liquid and a low-residue or general diet
• Lactose-intolerant individuals require significant diet modification
Nursing Support
The nursing staff plays a vital role in making sure patients receive adequate hydration following surgery. Patients are often still very medicated, nauseated, and sometimes depressed, anxious or in pain, resulting in a lack of appetite. Nurses can be a great liaison between the dietary staff and the patient to ensure that the patient's food preferences are taken into account.
Nursing Interventions
The nurse can improve fluid intake by:
• Communicating food and beverage preferences. For example does the patient prefer cranberry, apple or grape juice? Does she drink milk?
• Providing alternative clear or full liquid alternatives from the nursing pantry.
• Being aggressive and positive yet sensitive to patient tolerance
• Making mealtime pleasant by clearing the tray table of urinals, emesis basins, spirometry and other medical equipment.
• Timing treatments, lab draws and restroom breaks well in advance of meal times.
Liquid or Solid
Medical opinion on the need for liquid diets has changed over time. The traditional post-surgical diet advanced from clear liquid to full liquid and finally to low-residue or general depending upon the patient's level of tolerance. Today, patients may progress from clear liquid straight to a general diet. Some physicians may decide to skip liquid diets altogether depending on the nature and length of the surgery. Many patients are able to recover better if they can return quickly to normal--assuming that normal isn't what drove them into surgery in the first place.
